Refrigerating-car



(NoModeL; 3SheetsS heet 1. J. LORENZ. Refrigerating Car.

No. 236,712. I Patented Jan. 18, 18 81. V

WITNESSES; I INVENTOR m fa I fi '7 ATTORNEY ".FETERS, PHOTO-LIYHOGRAPHERWASHINGION, D C- (No Model.) 3 Sheets-Sheet 2.

J. LORENZ. Refrigerating Car.

No; 236,712. Patented Jan.'18, 1881.

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-A TTOR/VEY N,PE1 Em. FHOTO-LITHOGKAFHER, WASHINGTON. D C.

' FFICE.

JACOB LORENZ, on HAMILTON, OHIO.

REFRlGERATlNG-CAR.

SPECIFICATION forming part of Letters Patent No. 236,712, dated January18, 1881.

Application filed July 16, 1880. (N0 model.)

To all whom it may concern Be it known that I, JACOB LORENZ, ofHamilton, Butler county, Ohio, have invented certain new and usefulImprovements in Refrigerating-Oars, of which the followingis aspecitication.

In the accompanying drawings, Figure 1 is a side elevation and partsection of the body of a car embodying the new improvements. Fig. 2 is asectional plan, and Fig. 3 is a vertical transverse section of the same.

In the construction of these cars many features are involved which willbe found fully described in Patent No. 145,066, issued to L0- renz andBender, December 2, 1873, and in Patent No. 204,586, issued June 4,1878, to the same parties. Both these patents relate to refrigerators,and should be consulted in connection with the improvement hereinspecified.

As shown, the car is constructed with three walls, B, D, and F. Thistriple wall or casing is complete, and applies to sides, ends, roof, andfloor. The space C, between the two outer casings, is left hollow andforms an air-jacket. The space E, between the inner walls, is filledwith mixed charcoal and ashes, or any other suitable non-conductingsubstances.

The doors M are constructed with an airjacket and a non-conductor, thesame as the general walls. The doors open inward and close tightlyagainst rabbets, as shown. The shifting of contents of car may block thedoors and prevent their being opened. A small door, N, called thesub-door, is hung in one of the main doors. This door closes tightly,but opens outward. Ingress to the car may thus be had shouldthe maindoors be found blocked.

The air-spaces of thefloor are not connected with the spaces in the sidewalls, 850. Openings P, Fig. 1, at each end of the car allow a freecirculation of air in the floor-spaces. The openings P, and in fact allexternal orifices, should be gauzed or otherwise protected from sparksand dirt. Holes H at each end of the car allow air to circulate in mainair-spaces. Metal tubes G, placed in the space between the innercasings, F and 1), permit air to leave the interior of the car at thetop through openings I, and discharge into the air-jacket near The innercasing,

the floor through exits J.

F, is perforated, as at K, so as to expose the tube G to the condensinginfluenceof the cold interior of the car. The air, entering the tubes Gat the top, condenses,descends, and exits at J into the air-jacket O.The orifices through out may be gauzed or otherwise protected, and maybe provided with regulating-dampers. and ends of the car, as shown.

At the ends of the car, alongside the tubes G, are arranged theentry-tubes t, as shown in Figs. 3 and 2. These tubes admit air from theexterior of the car and discharge it into the car, near the floor,through openings 1. The tubes 15 operate, by condensation of air, thesame as tubes G, and perforations K are provided for them also. Theinlet-tubes t are only needed when the car contains substances likely todevelop impure gases. In ordinary cases the inlet-tubes are omitted inconstruc: tion, or suppressed in use by the closure of dampers M insidethe car. may be arranged at the sides of the car, if desired.

Across the floor of the car, say a couple of feet from each end, arefixed the ledges a. The spaces at the ends of the car within this ledgeform the ice-pans, and should be lined with zinc or galvanized iron. Forshort trips the small quantity of ice needed is laid in these end pans.For long trips more ice is required, and it is desirable that the ice beplaced in well up above the floor of the car. Provision is made for thehigh storage of a goodly quantity of ice, as will now be explained.

At each end of the car a slatted shelf, S, is hinged to the inner endwall of the car. These shelves have hinged legs U, and when the shelvesare not in use they, with their legs U, fold neatly up against the endof the car, as shown at the right-hand end of Fig. 2. When the shelvesare down and in use they are in position to hold ice, which may bestored clear to the ceiling of the car. The ice-pans T are directlyunder the shelves and catch all drip from the ice. Slatted gates orpatitions R hinged to the sides of the car close against the edges ofthe icc-shelves and prevent the falling of ice. When the gates B are notin use they open neatly against the sides of the car.

The tubes G are arranged in the sides The inlet-tubes t The gates R areprovided with hooks V, into which a downward projection on the frontedge of the shelves engage. When the iceshelves are loaded the gates areclosed, and a slight lifting of the shelves permits the hooks V to passunder the projections of the shelves, which, in dropping back, lock thegates shut. In Fig. 2 the left end shelf and its gates are in positionfor use, and the right-hand ones are folded out of the way.

Any proper kind of fastenings may he arranged on the shelves and gates,and the shelves may, if desired, be fixed immovably to the car. Thegates may be fixed or arranged as a simple movable partition, or theshelves may be arranged as cribs to hold sufficient ice, and besupported a fair distance from the floor in any suitable manner.

A longitudinal trough, c, islocated beneath I the floor in the center ofthe car. The flooring of the car projecting over the sides of thetrough, as shown in Fig. 3, leaves but a small portion of the troughuncovered. The resulting crack permits the trough to be cleaned, andforms the entry for the drainage of the floor. The inward projection ofthe floor prevents any mussy spilling of the contents of the trough whenthe car tips in rounding curves. The floor slopes to the trough, so asto drain well. Gutters b conduct water from the icepans T directly tothe trough, and the sloping of the floor drains the body of the car.Trap-doors d at the ends and centerof the gutter give free access to thegutter at these points. c is the king-bolt of the car, and the gutters bare placed diagonal, as shown, to clear it.

At the center of the trough, under the car, is placed the outlet-trap O,which permits the outward flow of water but prevents the inward flow ofair. Into the outlet of the trough is screwed the nipple 1). (Shown inFig. 3.)

This nipple may be so adjusted that no water will leave the trough tillit is nearly full. The intention is to allow the water to accumulate inthe trough and be discharged at the end of a journey, and at the sametime to guard against overflow. The trouglie is, in fact, a reservoir,and for short trips no outlet is needed, as the contents may be drawn01f at the end of the trip.

I claim as my invention- 1. The combination, with a hinged car-doorarranged to open inwardly and operate as usual, of a panel or sub-doorarranged in the face of said door, and adapted to open outwardly,substantially as and for the purpose set forth.

2. In refrigerator-cars, the air-space O in the floor of the car,completely inclosed by airtight Walls, and provided at each end withopening P, communicating with the outer air, substantially as and forthe purpose set forth.

3. The combination, with the metallic airtubes, of the inner lining ofthe car, provided with perforations to expose the air-tubes to the coolinterior of the car, substantially as set forth.

4. The combination, with a car-body, icereceptacles, and drains, of alongitudinal central reservoir located beneath the fioor, and providedwith an overflow-outlet and air-trap, substantially as set forth.

5. The combination, with a longitudinal reservoir located beneath thefloor ot' the car, of the floor sloping from the car-walls to thereservoir, and projecting over the shores of said reservoir,substantially as set forth.

6. The ice-pans at the ends of the car, combined with drain-gutters anda central reservoir, substantially as set forth.

7. The ice-crib formed of a shelf and gate hinged to the Walls of thecar, and adapted to fold against the walls of the car when not in use,substantially as set forth.

JACOB LORENZ.

Witnesses:

J. W. SEE, M. D. BRENNAN.

